US PATENT SUBCLASS 392 / 464
.~.~.~.~ Off-peak power

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
441  DF  .~ Tank or container type liquid heater {4}
449  DF  .~.~ Line connected tank {4}
463  DF  .~.~.~ With timer controlled energization {1}
464.~.~.~.~ Off-peak power

DEFINITION

Classification: 392/464

Off-peak power:

(under subclass 463) Subject matter wherein the timer permits energization of the heater at the time of day during which power usage is at a minimum, i.e., off-peak.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339+, for heat storage means.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems, appropriate subclasses for electrical transmission and interconnection switching systems.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

365+, for miscellaneous gating circuits.